In the Second Age when Sauron forged the Ruling Ring, he also created the Seven and the Nine lesser rings over which the One was to have power. The nine he bestowed upon mannish lords who he had seduced into his service, promising them unending life in return for their fealty, The nine did indeed achieve immortality, but in time became mere extensions of his will, animated by fear alone and driven to do his bidding.

They became his most trustworthy lieutenants, leading his armies and ruling puppet kingdoms. By the end of the Third Age they had all been charged with the task of seeking out the Ringbearer and bringing the One Ring back to Sauron.